15 results
The fourth pattern includes abnormalities that result in decreased lung attenuation or air-filled lesions.
These include:
- Emphysema
-
- Lung cysts (LAM ... on the basis of HRCT ... #Diagnosis #Radiology ... #Pulmonary #CTChest ... #SignetRing #RadiologyAssistant
Low Attenuation pattern 
1. Lymphangiomyomatosis (LAM): uniform cysts in woman of child-bearing age; no history of
Lymphangiomyomatosis (LAM ... Centrilobular emphysema ... #Clinical #Radiology ... #HRCT #CTChest ... #Table #RadiologyAssistant
Low Attenuation pattern (2) 
1. Centrilobular emphysema: low attenuation areas without walls. Notice the centrilobular artery
Centrilobular emphysema ... Lymphangiomyomatosis (LAM ... #Clinical #Radiology ... #HRCT #CTChest ... #Table #RadiologyAssistant
There is a hydropneumothorax.
Notice the air-fluid level (blue arrow).
The upper lobe is still attached to the
is a possible diagnosis ... LAM is a rare lung ... #Clinical #Radiology ... #CXR #Pneumothorax ... #RadiologyAssistant
Differential diagnosis of Langerhans cell histiocytosis.
Nodular LCH:
- Sarcoidosis: perilymphatic distribution.
- Metastases: random distribution.
Cystic LCH:
- LAM: round
Cystic LCH: - LAM ... Centrilobular emphysema ... #Diagnosis #Radiology ... #CTChest #Cystic ... #Table #RadiologyAssistant
Differential diagnosis on HRCT
Most of our knowledge about imaging findings in interstitial lung disease comes from
Differential diagnosis ... low attenuation (table ... #Diagnosis #Radiology ... #Pulmonary #CXR ... #Differential #RadiologyAssistant
UIP with honeycombing (left) and chronic HP (right)
Differential diagnosis of Hypersensitivity Pneumonitis.
Subacute stage:
- RB-ILD: seen in
centrilobular emphysema ... show very similar HRCT ... #Clinical #Diagnosis ... #Radiology #CTChest ... #UIP #Comparison
There is a hydropneumothorax.
Notice the air-fluid level.
The upper lobe is still attached to the chest wall
is a possible diagnosis ... LAM is a rare lung ... #Clinical #Radiology ... #CXR #Pneumothorax ... #RadiologyAssistant
UIP
UIP is a histologic pattern of pulmonary fibrosis.
On a chest X-ray UIP manifests as a reticular
histologic pattern of pulmonary ... to confirm the diagnosis ... attributed to chronic ... #Clinical #Radiology ... #Honeycombing #RadiologyAssistant
Stage I - Redistribution
In a normal chest film with the patient standing erect, the pulmonary vessels
In daily clinical ... In these cases comparison ... #Clinical #Radiology ... #CXR #CHF #Cephalization ... Redistribution #RadiologyAssistant